cardial valvesemi-lunar valveEHDAA2:0001823EHDAA:4408EMAPA:35760Extensive conservation of valve developmental mechanisms also has been observed among vertebrate species including chicken, mouse, and human.[well established][VHOG]Lacks chordae tendinaeMA:0002790UBERON:0005623VHOG:0001393semilunar valvesemilunar valvesthe valves that gate the flow of blood from the ventricles into the aorta and pulmonary trunkuberon